Miyajima Public Aquarium (宮島水族館, Miyajima Suizokukan) is an aquarium on the island of Itsukushima in Hatsukaichi, Hiroshima, Japan. The aquarium is accredited as a Museum-equivalent facility by the Museum Act from Ministry of Education, Culture, Sports, Science and Technology.

The aquarium has around 350 species of aquatic animals include finless porpoises, sea otters, Steller sea lions, sea lions and penguins.

The aquarium is divided into several sections across two floors featuring different habitats:

• Mudflats of Miyajima
• Sea of Healing
• Whales of Setouchi
• Mysteries of the Sea
• Blessings of the Sea
• Rocky Shore of Friendship
• From Mountains to Sea
• Penguin Pool
• Sea Lion Pool

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Miyajima Public Aquarium opened as a prefectural aquarium in 1959. It was transferred to Miyajima, Hiroshima as a town aquarium in 1967, and its buildings were reconstructed in 1981. In 2005, the aquarium was once again transferred to Hatsukaichi, Hiroshima as a city aquarium. In 2011, a roof was installed near the aquarium entrance as part of building renewal efforts to combat weather concerns.

• Japanese Association of Zoos and Aquariums
• Itsukushima

• Miyajima Public Aquarium
• Japanese Association of Zoos and Aquariums

34°17′43″N 132°18′55″E / 34.295392°N 132.315356°E / 34.295392; 132.315356